摘要:
Medical diagnosis apparatuses (and a respective method for using such apparatuses) are provided, particularly large apparatuses operated in a centralized manner, (e.g., MR scanners, CT tomographs or the like), characterized by a patient acquisition device assigned to it for acquiring individual distinctive identification features of the patient, which are automatically stored with the apparatus data obtained.
摘要:
In a method for analyzing cerebrospinal fluid perfusion by magnetic resonance imaging, a contrast agent is directing injected into volumes containing cerebrospinal fluid and a magnetic resonance image of those volumes is obtained. After a suitable waiting time, at least one further magnetic resonance image of the volumes is obtained. The (at least) two magnetic resonance images of the volumes are then compared and the degree of perfusion of the contrast agent is identified as an indicator of the perfusion and/or flow of cerebrospinal fluid in the volumes.
摘要:
A radioshielded assembly contains components that require a d.c. supply and a multi-pole terminal arrangement connected between power supply terminals of the components and an external d.c. supply. At least one pole of the multi-pole terminal arrangement is fashioned for conducting a potential that differs from a reference potential. A switching stage is inserted between that pole of the terminal means that does not carry reference potential and the corresponding power supply terminals of the components. An actuation arrangement is in interactive communication with the switching stage, as a result of which the connected pole can be electrically connected to the power supply terminals or the pole can be disconnected from the power supply terminals and electrically connected to a reference potential so that interference signals cannot reach the components via the power supply lines. An arrangement of electrochemical elements is connected parallel to the power supply terminals for supplying power to the components when the pole is disconnected from the power supply.
摘要:
An input device for shifting a marker on a monitor has a completely closed, hermetically sealed and sterilizeable housing with an electrical shield, at least one sensor arrangement for detecting movement of the housing, an evaluation unit connected with the sensor arrangement, and a conversion unit connected to the evaluation unit downstream for converting the signals emitted by the evaluation unit into corresponding modulated signals. The sensor arrangement, the evaluation unit and the conversion unit are arranged entirely within the shield as is a transmitting unit for radiating the modulated signals into the environment, where they are detected by a receiver positioned in the environment and are converted into signals for shifting the marker on the monitor.
摘要:
In an apparatus for treatment of a subject with acoustic waves, a spatial allocation, required for the treatment of the patient and a source of acoustic waves relative to each other is effected by a surgical work station using a three-dimensional navigation system on the basis of a number of images of a region to be treated, which are obtained independently of the treatment apparatus, in different coordinate systems, and are displayed on a display screen of the work station.
摘要:
In a method and system for navigating an endoscopy capsule in a patient, wherein the endoscopy capsule includes a camera, a first image of an object in the interior of the patient is obtained with the camera, in which a re-identifiable structural feature of the object is identified. Successive images of the interior of the patient are then automatically obtained with the camera, and the endoscopy capsule is controlled, for each image, so that the position of the structural feature remains unchanged in the individual images while the image scale is intentionally enlarged or reduced.
摘要:
An endoscope for quantitatively determining dimensions of an object in a cavity is provided. The endoscope has a projector connected to a light guide that can be introduced through the instrument channel. In the introduced position the projector projects a pattern at a defined illumination angle onto the object to be examined. The endoscope has a camera that captures the projected pattern at a fixed viewing angle in a distorted from corresponding to the object. The distorted form is used for quantitatively determining dimensions of the object by a triangulation method.
摘要:
In a method to obtain measurement data from the stomach of a patient using an endoscope, a degassed aqueous drink solution is administered to the stomach of the patient and the measurement data are acquired with the degassed aqueous drink solution present in the stomach.
摘要:
A system for the implementation of minimally invasive diagnoses and interventions in the inside of the body of a patient has an endo-robot that has a linear magnet and carries measurement instruments and/or instruments for taking specimens and/or for treatment. The endo-robot is freely mobile within the body of a patient. A magnet system accepts the examination region of the patient and generates a 3D gradient field for remotely-controls movement and orientation of the endo-robot in the patient's body by interaction with the linear magnet.
摘要:
The invention relates to an upper body MRI scanner comprising a magnet arrangement for producing a horizontally oriented homogeneous main magnetic field, said magnet arrangement being designed to examine the upper body of a standing patient. An image acquisition unit is provided for continuously creating upper body image of the standing patient. A quality checking unit is designed for automatically determining a quality metric characterizing the quality of the upper body images. An imaging controller connected to the image acquisition unit and the quality checking unit is provided for activating the image acquisition unit and outputting signals for influencing the position and/or behavior of the patient as a function of the characteristic quality metric. An output unit connected to the image acquisition unit is used for displaying and/or storing at least some of the upper body images.